Fractional-distillation apparatus



Nov. 26, 1929. R. B. CHILLAS, JR

FRACTIONAL DISTILLATION APPARATUS Filed Feb. 25, 1926 1 ATTORNEY.

Patented N... 26, 1929 1,736,845.

UNITED STATES PATENT OFFICE RICHARD. B. CHILLAS, TH, 01 PHILADELPHIA, PENNSYLVANIA, ASSIGNOB TO THE ATLANTIC BIQPINING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA FRACTIONAL-DISTILLATION APPARATUS Application filed February 25, 1926. fierial No. 90,589.

My invention relates to apparatus for fracumn may be square or ofother suitable contional distillation and comprehends improvefiguration, The bubbler plates are secured ments in the construction of plates and of in any convenient or desired manner to the bubbler caps used in connection therewith. column in suitable spaced relation.

In accordance with my invention, a bub- Some of the vapor uptakes 1 are covered 55 bler cap comprised in a bubbler plate is by the usual type of bubbler caps 2 each comformed with an orifice for the downward pasprising, if desired, the lower notched periphsage of the refluxing liquid, and more pareral edge 3 allowing the vapors to pass into ticularly the bubbler cap comprises a pipe thelayerof refluxing liquid onabubblerplate. or conduit preferably formed integrally Other vapor uptakes 1 are covered by bubbler 6o therewith through which the refluxing liquid cap structures 4* constructed in accordance pursues its downward course, as aforesaid. with my invention. Cap structures of this When utilizing one or more bubbler caps character constitute a combined bubbler cap of the character aforesaid, the plate construcand downflow pipe or conduit and may as-v flow pipes on the plate may be omitted. In Figs. 3 and 4, I have illustrated a form Greater flexibility and improved results are of my invention in which the bubbler cap obtained since the bubbler caps including the structure 4 is suitably shaped to form a chandown flow pipe may be interchangeable with nel 7 opening into the downflow pipe 5. the ordinary type of bubbler cap and hence Cap structure 4 may be provided interiorly the regions wherein there is discharge of rethereof with the fin or lug 6 which with 'fluxing liquid onto the bubbler plate below the channel floor 8 of channel 7 may engage may be regulated or changed at will. the top of a vapor uptake to support the cap For an understanding of my invention and structure. Or, bubbler cap structure 4 may 5 for an illustration of some of the forms it be otherwise suitably supported. With this may take, reference is to be had to the accomconstructiomthe level of the refluxing liquid panying drawing, in which: on a bubbler plate is defined by the height Fig. 1 is a vertical sectional view of appaof channel floor 8' thereabove.

ratus constructed in accordance with my in- In Figs. 5, 6 and 7 I have illustrated an- 30 vention taken on line 1-1 of Fig.2. other modified form of my invention in which Fig. 2 is a plan view of one of the bubbler the cap structure constitutes a combined bubplates shown in Fig. 1 with parts thereof bler cap and downflow pipe suitable for use broken away to illustrate the plate beneath. with long narrow vapor uptakes. An uptake Fig. 3 is a vertical sectional view of a comof this character may be 'formed by the ads5 bined bubbler cap and down flow pipe. jacent vertical walls of spaced receptacles 35 Fig. 4 is a plan view of the structure shown containing refluxing liquid as disclosed in in Fig. 3. my co-pending application Serial No. 57,912, Fig. 5 is a vertical sectional view of a modifiled September 22, 1925; In the example fied form of my invention. shown, a bubbler plate B comprises a long 40 Fig. 6 is a plan view of the structure shown narrow vapor uptake 1 covered by a bubbler in Fig 5. cap structure 4 suitably shaped to form a Fig. 7 is aperspective view of the combined channel 7 having a downflow pipe 5 combubbler cap and down How pipe shown in municating therewith. Cap structure 4 may Figs. 5 and 6. be suitably supported or retained above the 45 Within the fractionating column A are vapor uptake 1", as by the fins or lugs 6". positioned a plurality of bubbler plates 13, The operation of a column using plates B and B each having, in the example shown, fitted with my novel type of bubbler cap three vapor uptakes 1, Figs. 1 and 2. As structure is as follows:

illustrated, column A is round or cylindrical. Vapor introduced into the column A from tion is' simplified whereby the usual down sumeavariety of forms. 65

50 It shall be understood, however, that the cola still or other suitable heating structure, I

I is maintained at the P Q an opemng in a bubbler flow pipe above described passes'upwardly througllji the vapor uptakes 1, beln forced by the ubbler caps to ass under t e lower edge thereof and to bubble through the 01 of liquid maintained on each plate. he refluxing liquid passes downwardly through the downflow ipes in the bubbler caps and is discharged on the plate beneath in such a way that a liquid seal a upward flow of vapor through these pipes 1s thereby-prevented.

e in the example given the plates are described as each having only three bubbler caps, two of which include downflow ipes in accordance with my invention, it will be understood that any number of bubbler caps may be used one or more of which have a downflow pipe as a part thereof.

Nor is the relative position of the two types of bubbler ca s limited as shown, for my novel type of ubbler cap including a down flow pipe permits considerable flexibility of operation, for by changing the position and number of the bubbler caps carryin downflow pipes, the length of path over w ich the reflux ows and the quantity of reflux delivered at the several points on each plate may be controlled as desired. This flexibilityis not obtainable with the pe of fractionating plate and bubbler cap eretofore used.

The types of bubbler cap including a downis particularly advantageous for plates constructed in accordance with my aforesaid co-pending application Serial 57,912, in which the plates are constructed of a fpluralitg' of independent an-like sections, or wit the combined ubbler cap and downflow plpe, it is unnecessary to provide a separate downflow section, thus permit g the use of uniform interchangeable pa'ns,

What I claim is: 1. In an apparatus of the class described, a bubbler plate having an openin therein, a bubbler cap extending over sai opening P, a P P and having an opening in its to extending downwardly from said second mentioned opening to a point below said bubbler plate, said ca having a channel extending from the. si e thereof to said pi for conducting the to of said bub ler ca to said pipe.

2. a combined bubb er cap and 'downa member adapted to extendover ning in a bubbler plate and whose lengt is greater than its width, said memher having a channel extending the width thereof and having an-opening in the bottom of said channel, and a pipe extending downwardly from said openin 3. In a combined bubb flow pipe, a member adapted to extend over late and whose length th, lug structure is greater than its wi within said member,

having an opemng bottom of the pipes and er cap and down-' said member having a channel extending the width thereof and in the bottom of said channel, and a pipe extending downwardly from said opening.

RICHARD B. CHILLAS, JR.

li uid from a point below Y 

